On today’s daf we learn:
How many vertebrae must be missing from a spine so that it will not be considered a full corpse that would render one impure in a tent? Beit Shammai say: Two missing vertebrae. Beit Hillel say: One missing vertebra.
Rav Yehuda says that Shmuel says: And just as Beit Shammai and Beit Hillel disagree with regard to ritual impurity, so too they disagree with regard to a treifa.
To explain: A dead body imparts “impurity in a tent.” What this means is that direct physical contact is not necessary to contract impurity. Simply occupying the same room (or tent) as the corpse makes one impure.
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For matters of ritual impurity, a complete spine is treated like a dead body. So even if most of the corpse is missing, simply the presence of a spine will render one impure. This leads to a question about incomplete spines — do they also render a person in the same tent impure?
Mishnah Ohalot (literally: Mishnah Tents) teaches that Beit Hillel and Beit Shammai have a different opinion about what constitutes a complete spine. Beit Hillel rule that a spine that is missing one vertebra is still considered to be complete, but if it is missing more it is not complete and doesn’t impart impurity in a tent. Beit Shammai are, predictably, more stringent — ruling that a spine is still considered complete if it is missing two vertebrae.
Why are we discussing this in Tractate Chullin? On today’s daf, the Gemara is discussing the impact of damaged spines on the permissibility of the meat of the animal. How much damage renders the animal a treifa, and therefore unkosher?
Shmuel applies the standard for impurity to the rules of ritual slaughter. In other words, Beit Hillel hold that an animal with one damaged vertebra cannot be ritually slaughtered for consumption; Beit Shammai say that two vertebrae must be damaged to prohibit the animal.
Shmuel’s logic is well in line with talmudic reasoning. It is not uncommon for the Talmud to apply positions from one context to another. In this case, however, there is a problem:
Rav Oshaya objects: But if that is so, let the tanna teach this dispute along with the list of leniencies of Beit Shammai and stringencies of Beit Hillel.
In the case of ritual impurity caused by a corpse, Beit Shammai’s opinion is stricter. He deems even a spine lacking two vertebrae as an entire corpse (for the purposes of spreading ritual impurity). Beit Hillel’s position is more lenient, allowing that a spine lacking two vertebrae is not equivalent to an entire corpse. But when we switch to the realm of determining if an animal is a treifa, suddenly Beit Hillel are more strict (prohibiting an animal missing more than one vertebra) than Beit Shammai (prohibiting an animal missing more than two).
Beit Hillel is known for being the more lenient school. It is not a problem per se for Beit Hillel to be stricter than Beit Shammai because this does happen from time to time. In fact, a list of the instances in which Beit Hillel is stricter appears in Mishnah Eduyot 5:3–4. The problem for Rabbi Oshaya is that this particular case does not appear on the list.
Luckily, Rav comes to save the day. He reports that Beit Hillel and Beit Shammai did have a debate about ritual impurity, but in that instance the matter of ritual slaughter did not arise. As a result, it could not have appeared on the list in the Mishnah. This means that Shmuel’s statement on today’s daf does not represent an actual dispute. Rather, it is an inference made by Shmuel.
The upshot: It is fair to assume that Beit Hillel will take the more lenient position. But don’t assume, as Rav Oshaya did, that the list of leniencies of Beit Shammai is complete or holds the final word.
Read all of Chullin 52 on Sefaria.
This piece originally appeared in a My Jewish Learning Daf Yomi email newsletter sent on June 21, 2026. If you are interested in receiving the newsletter, sign up here.
